For example, the format "%40{{%{family} %{style}}}" expands the sub-expression
to construct the family name followed by the style, then takes the entire
string and pads it on the left to be at least forty characters.
For example, the format "%40{{%{family} %{style}}}" expands the sub-expression
to construct the family name followed by the style, then takes the entire
string and pads it on the left to be at least forty characters.